BIO 1130 Study Guide - Quiz Guide: Mesohyl, Subphylum, Infusoria

• School: University of Ottawa
• Department: Biology
• Course: BIO 1130
• Professor: Jon Houseman

Document Summary

Triploblastic animals that do not have an internal body cavity. Most accurately used with the triploblasts rather than diploblasts. These animals have a mass of cell derived largely from mesoderm that packs the region between the gut and the body wall. Covered the ocean bottom prior to the start of the cambrian (the pre-cambrian ocean) Prevented earlier life forms from burrowing into the sediments. One of the innovative feeding strategies of the cambrian was being able to penetrate the mats and feed on the substrate underneath. A cell in a multicellular organism that moves using amoeboid movement. Amebocytes often are involved in transporting materials, defending against invading organisms, or cleaning up dead debris and materials. Blastopore (opening on the surface of an embryo) connects it to the outside environment. In deuterostomes, mesoderm forms from outpocketings of the archenteron. Amoeboid cells that move throughout the mesohyl (gelatinous matrix between the two layers of cells in sponges) by amoeboid movement.